Article ; Online: Vaginal carriage of Haemophilus influenzae in a non-pregnant reproductive-age population.
2023 Volume 23, Issue 1, Page(s) 141
Abstract: Background: Haemophilus influenzae (Hi) is an emerging cause of early onset neonatal sepsis, but mechanisms of transmission are not well understood. We aimed to determine the prevalence of vaginal carriage of Hi in reproductive age women and to examine ... ...
Abstract | Background: Haemophilus influenzae (Hi) is an emerging cause of early onset neonatal sepsis, but mechanisms of transmission are not well understood. We aimed to determine the prevalence of vaginal carriage of Hi in reproductive age women and to examine behavioral and demographic characteristics associated with its carriage. Methods: We performed a secondary analysis of stored vaginal lavage specimens from a prospective cohort study of nonpregnant reproductive-age women. After extraction of bacterial genomic DNA, samples were tested for the presence of the gene encoding Haemophilus protein d (hpd) by quantitative real-time polymerase chain reaction (PCR) using validated primers and probe. PCR for the V3-V4 region of the 16 S rRNA gene (positive control) assessed sample quality. Samples with cycle threshold (C Results: 415 samples were available. 315 (75.9%) had sufficient bacterial DNA and were included. 14 (4.4%) were positive for hpd. There were no demographic or behavioral differences between the women with Hi vaginal carriage and those without. There was no difference in history of bacterial vaginosis, vaginal microbiome community state type, or presence of Group B Streptococcus in women with and without vaginal carriage of Hi. Conclusion: Hi was present in vaginal lavage specimens of 4.4% of this cohort. Hi presence was unrelated to clinical or demographic characteristics, though the relatively small number of positive samples may have limited power to detect such differences. |
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MeSH term(s) | Haemophilus influenzae/genetics ; Haemophilus Infections/epidemiology ; Haemophilus Infections/microbiology ; Haemophilus Infections/prevention & control ; Haemophilus Infections/transmission ; Humans ; Female ; Cohort Studies ; Prevalence ; Adult ; Adolescent ; Young Adult ; Middle Aged ; Polymerase Chain Reaction ; Microbiota ; Vagina/microbiology ; Neonatal Sepsis/microbiology ; Neonatal Sepsis/prevention & control ; Male ; DNA, Bacterial/genetics |
Chemical Substances | DNA, Bacterial |
Language | English |
Publishing date | 2023-05-19 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2041505-9 |
ISSN | 1471-2180 ; 1471-2180 |
ISSN (online) | 1471-2180 |
ISSN | 1471-2180 |
DOI | 10.1186/s12866-023-02885-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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